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Smartwool Base Layers

(76 products)

Products (76)

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Colors
Top Rated
SmartwoolClassic Thermal Merino Crew Base Layer Top - Men's
$115.00
684 reviews with an average rating of 4.8 out of 5 stars
Colors
SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's
$115.00
625 reviews with an average rating of 4.5 out of 5 stars
Colors
Top Rated
SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Men's
$120.00
575 reviews with an average rating of 4.8 out of 5 stars
Colors
Top Rated
SmartwoolClassic All-Season Merino Base Layer Bottoms - Men's
$90.00
101 reviews with an average rating of 4.6 out of 5 stars
Colors
Top Rated
SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Women's
$62.93 - $90.00
271 reviews with an average rating of 4.5 out of 5 stars
Colors
Top Rated
SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Women's
$115.00 - $120.00
1025 reviews with an average rating of 4.7 out of 5 stars
Colors
SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Women's
$130.00
48 reviews with an average rating of 4.4 out of 5 stars
Colors
SmartwoolIntraknit Thermal Merino Quarter-Zip Base Layer Top - Men's
$140.00
41 reviews with an average rating of 4.4 out of 5 stars
Colors
REI Outlet
SmartwoolClassic All Season Merino Long-Sleeve Base Layer Top - Men's
$66.73
Save 25%
compared to $90.00
0 reviews
Colors
SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's
$130.00
158 reviews with an average rating of 4.4 out of 5 stars
Colors
Top Rated
SmartwoolIntraknit Thermal Max Quarter-Zip Base Layer Top - Men's
$155.00
59 reviews with an average rating of 4.7 out of 5 stars
REI Outlet
SmartwoolIntraknit Thermal Merino Quarter-Zip Base Layer Top - Women's
$100.73
Save 25%
compared to $135.00
1 reviews with an average rating of 4.0 out of 5 stars
SmartwoolIntraknit Thermal Merino Base Layer 3/4 Bottoms - Men's
$120.00
0 reviews
SmartwoolIntraknit Thermal Max Quarter-Zip Base Layer Top - Women's
$155.00
19 reviews with an average rating of 3.9 out of 5 stars
Colors
REI Outlet
SmartwoolClassic Thermal Merino Pattern Crew Base Layer Top - Women's
$81.73
Save 25%
compared to $110.00
4 reviews with an average rating of 4.8 out of 5 stars
Colors
Top Rated
SmartwoolIntraknit Thermal Merino Pattern Crew Base Layer Top - Women's
$130.00
74 reviews with an average rating of 4.5 out of 5 stars
Colors
Top Rated
SmartwoolClassic Thermal Merino Colorblock Quarter-Zip Base Layer Top - Women's
$125.00
59 reviews with an average rating of 4.9 out of 5 stars
Colors
Top Rated
SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Women's Plus Sizes
$115.00 - $120.00
29 reviews with an average rating of 4.6 out of 5 stars
Colors
SmartwoolIntraknit Thermal Merino Pattern Crew Base Layer Top - Men's
$130.00
31 reviews with an average rating of 4.4 out of 5 stars
REI Outlet
SmartwoolClassic All Season Merino Quarter-Zip Base Layer Top - Men's
$70.73
Save 25%
compared to $95.00
1 reviews with an average rating of 5.0 out of 5 stars
Top Rated
SmartwoolIntraknit Thermal Max Merino Base Layer Bottoms - Men's
$135.00
39 reviews with an average rating of 4.7 out of 5 stars
Colors
REI Outlet
SmartwoolClassic Thermal Merino Patterned Quarter-Zip Base Layer Top - Men's
$85.73
Save 25%
compared to $115.00
6 reviews with an average rating of 4.2 out of 5 stars
Colors
REI Outlet
SmartwoolClassic Thermal Merino Base Layer Bottoms - Kids'
$44.73
Save 25%
compared to $60.00
0 reviews
Colors
REI Outlet
SmartwoolClassic Thermal Merino Plant-Based Dye Logo Crew Base Layer Top - Men's
$81.73
Save 25%
compared to $110.00
0 reviews
Colors
REI Outlet
SmartwoolClassic Thermal Merino Crew Base Layer Top - Kids'
$44.73
Save 25%
compared to $60.00
0 reviews
Colors
REI Outlet
SmartwoolClassic Thermal Merino Plant-Based Dye Logo Crew Base Layer Top - Women's
$81.73
Save 25%
compared to $110.00
0 reviews
Colors
Top Rated
SmartwoolClassic Thermal Merino Base Layer Bottoms - Men's
$115.00
496 reviews with an average rating of 4.7 out of 5 stars
Colors
Top Rated
SmartwoolClassic Thermal Merino Crew Base Layer Top - Women's
$115.00
904 reviews with an average rating of 4.7 out of 5 stars
Colors
Top Rated
SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Men's
$90.00
300 reviews with an average rating of 4.7 out of 5 stars

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SmartwoolClassic Thermal Merino Crew Base Layer Top - Men's

SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's

SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Men's

SmartwoolClassic All-Season Merino Base Layer Bottoms - Men's

SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Women's

SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Women's

SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Women's

SmartwoolIntraknit Thermal Merino Quarter-Zip Base Layer Top - Men's

SmartwoolClassic All Season Merino Long-Sleeve Base Layer Top - Men's

SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's

SmartwoolIntraknit Thermal Max Quarter-Zip Base Layer Top - Men's

SmartwoolIntraknit Thermal Merino Quarter-Zip Base Layer Top - Women's

SmartwoolIntraknit Thermal Merino Base Layer 3/4 Bottoms - Men's

SmartwoolIntraknit Thermal Max Quarter-Zip Base Layer Top - Women's

SmartwoolClassic Thermal Merino Pattern Crew Base Layer Top - Women's

SmartwoolIntraknit Thermal Merino Pattern Crew Base Layer Top - Women's

SmartwoolClassic Thermal Merino Colorblock Quarter-Zip Base Layer Top - Women's

SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Women's Plus Sizes

SmartwoolIntraknit Thermal Merino Pattern Crew Base Layer Top - Men's

SmartwoolClassic All Season Merino Quarter-Zip Base Layer Top - Men's

SmartwoolIntraknit Thermal Max Merino Base Layer Bottoms - Men's

SmartwoolClassic Thermal Merino Patterned Quarter-Zip Base Layer Top - Men's

SmartwoolClassic Thermal Merino Base Layer Bottoms - Kids'

SmartwoolClassic Thermal Merino Plant-Based Dye Logo Crew Base Layer Top - Men's

SmartwoolClassic Thermal Merino Crew Base Layer Top - Kids'

SmartwoolClassic Thermal Merino Plant-Based Dye Logo Crew Base Layer Top - Women's

SmartwoolClassic Thermal Merino Base Layer Bottoms - Men's

SmartwoolClassic Thermal Merino Crew Base Layer Top - Women's

SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Men's